- Adviser on Natural Resources at the Autonomous University of Tamaulipas and Nayarit States, Mexico
- Adviser in Vegetal Natural Resources Area at the National Council of Science and Technology (CONACYT)
- Adviser at Cordova Botanical Garden, University of Cordova, Spain
- Adviser in Multidisciplinary Project of Medicinal Plants, Mission National University, Argentina
- Titled Full time Professor at the Biology Department, Sciences School of UNAM, Mexico

- Presidecy at the National and International Congresses
- "Martin Cruz" award given by Mexican Academy of Traditional Medicine, A.C.
- Working during 30 years at the Autonomous National University of Mexico (UNAM)

Other Activities

- Lecturer at congresses, workshops in more than 31 events at the national level and 35 at the international level in Cuba, France, Brazil, Usa, Costa Rica and Italy
- Member of Objective Commission for Biologist Career at the School of Sciences of UNAM
- Member of the Organizing Committee for the III International Ethnobiology Congress
- General Coordinator of the Biology Department; School of Sciences of UNAM
- Member of Sciences School Scholarships Sub-Committee, UNAM